| US 7,541,549 B2 | ||
| Vacuum transfer apparatus having load isolation weighing system including a rigid pipe section pivotally mounted to a support frame | ||
| Andrew C. Estes, Russellville, Ark. (US); Kyle A. Stobaugh, Russellville, Ark. (US); Mark A. Moody, Bellville, Ark. (US); Jeremy B. Estes, Russellville, Ark. (US); Ray W. Balaster, Russellville, Ark. (US); and Kurt R. Danzy, Russellville, Ark. (US) | ||
| Assigned to Cooling & Applied Technology, Inc., Russellville, Ark. (US) | ||
| Filed on Jan. 10, 2007, as Appl. No. 11/651,761. | ||
| Prior Publication US 2008/0164075 A1, Jul. 10, 2008 | ||
| Int. Cl. G01G 13/02 (2006.01) | ||
| U.S. Cl. 177—116 [406/23; 406/25; 406/151; 222/77] | 10 Claims |
| 1. A vacuum transfer system, comprising:
a frame;
at least one load cell mounted to said frame;
a weighing hopper operatively mounted to said at least one load cell, said weighing hopper having an inlet and an outlet gate;
an actuator valve operatively connected to said weighing hopper and to a vacuum source;
a controller operatively connected to said actuator valve and said outlet gate;
a rigid pipe section pivotally mounted to said frame at a pivot, said rigid pipe section having an inlet and an outlet; and
a flexible pipe section connected between said inlet of said weighing hopper and said outlet of said rigid pipe section.
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